Commit 2947e7b7 authored by Björn Axelsson's avatar Björn Axelsson Committed by Michael Niedermayer

flvenc: don't write random data if seek fails

The FLV muxer tries to update the header in write_trailer, which is
impossible if writing to a pipe or network stream. Don't write header
data if seek to header fails.
Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parent 0aa0bab4
......@@ -426,10 +426,14 @@ static int flv_write_trailer(AVFormatContext *s)
file_size = avio_tell(pb);
/* update information */
avio_seek(pb, flv->duration_offset, SEEK_SET);
put_amf_double(pb, flv->duration / (double)1000);
avio_seek(pb, flv->filesize_offset, SEEK_SET);
put_amf_double(pb, file_size);
if(avio_seek(pb, flv->duration_offset, SEEK_SET) < 0)
av_log(s, AV_LOG_WARNING, "Failed to update header with correct duration.\n");
else
put_amf_double(pb, flv->duration / (double)1000);
if(avio_seek(pb, flv->filesize_offset, SEEK_SET) < 0)
av_log(s, AV_LOG_WARNING, "Failed to update header with correct filesize.\n");
else
put_amf_double(pb, file_size);
avio_seek(pb, file_size, SEEK_SET);
return 0;
......
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